A New Spice Model of Silicon-Based Micro-Ring Resonator and Application for Optical Filter

Bin, 张彬 Zhang; Lu-hong, 毛陆虹 Mao; Sheng, 谢生 Xie; Shi-lin, 张世林 Zhang; Wei-lian, 郭维廉 Guo; Yan, 陈燕 Chen; Xin, 于欣 Yu

doi:10.3788/aos20103002.0537

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the high refractive index contrast between Si (n D 3.45) and SiO 2 (n D 1.45) (n D 2), a SOI nano-wire waveguide has the features of strongly confining lights and reducing the bending radius to several micrometers. These features enable optic-devices to be miniaturized and high-density integrated OE3;4 . Tunable filters based on SOI micro ring resonators have been widely researched and demonstrated to have excellent characteristics, such as compact structures and flexible function configuration, which makes it an ideal platform for large-scale-integration optical circuits.…”

Section: Introductionmentioning

confidence: 99%

Tunable filters based on an SOI nano-wire waveguide micro ring resonator

Ли¹,

Wu²,

Xiaojie³

et al. 2011

J. Semicond.

View full text Add to dashboard Cite

Micro ring resonator (MRR) filters based on a silicon on insulator (SOI) nanowire waveguide are fabricated by electron beam photolithography (EBL) and inductive coupled plasma (ICP) etching technology. The cross-section size of the strip waveguides is 450 220 nm 2 , and the bending radius of the micro ring is around 5 m. The test results from the tunable filter based on a single ring show that the free spectral range (FSR) is 16.8 nm and the extinction ratio (ER) around the wavelength 1550 nm is 18.1 dB. After thermal tuning, the filter's tuning bandwidth reaches 4.8 nm with a tuning efficiency of 0.12 nm/ ı C Meanwhile, we fabricated and studied multi-channel filters based on a single ring and a double ring. After measurement, we drew the following conclusions: during the signal transmission of multi-channel filters, crosstalk exists mainly among different transmission channels and are fairly distinct when there are signals input to add ports.

show abstract

Section: Introductionmentioning

confidence: 99%

Tunable filters based on an SOI nano-wire waveguide micro ring resonator

Ли¹,

Wu²,

Xiaojie³

et al. 2011

J. Semicond.

View full text Add to dashboard Cite

show abstract

Ecological divergence despite common mating sites: Genotypes and symbiotypes shed light on cryptic diversity in the black bean aphid species complex

Gimmi,

Wallisch,

Vorburger

2024

Heredity

View full text Add to dashboard Cite

Different host plants represent ecologically dissimilar environments for phytophagous insects. The resulting divergent selection can promote the evolution of specialized host races, provided that gene flow is reduced between populations feeding on different plants. In black bean aphids belonging to the Aphis fabae complex, several morphologically cryptic taxa have been described based on their distinct host plant preferences. However, host choice and mate choice are largely decoupled in these insects: they are host-alternating and migrate between specific summer host plants and shared winter hosts, with mating occurring on the shared hosts. This provides a yearly opportunity for gene flow among aphids using different summer hosts, and raises the question if and to what extent the ecologically defined taxa are reproductively isolated. Here, we analyzed a geographically and temporally structured dataset of microsatellite genotypes from A. fabae that were mostly collected from their main winter host Euonymus europaeus, and additionally from another winter host and fourteen summer hosts. The data reveals multiple, strongly differentiated genetic clusters, which differ in their association with different summer and winter hosts. The clusters also differ in the frequency of infection with two heritable, facultative endosymbionts, separately hinting at reproductive isolation and divergent ecological selection. Furthermore, we found evidence for occasional hybridization among genetic clusters, with putative hybrids collected more frequently in spring than in autumn. This suggests that similar to host races in other phytophagous insects, both prezygotic and postzygotic barriers including selection against hybrids maintain genetic differentiation among A. fabae taxa, despite a common mating habitat.

show abstract

Polarization dependence of carrier-induced refractive index change

Miao¹,

Cui²,

Hu³

et al. 2012

Acta Phys. Sin.

View full text Add to dashboard Cite

The influences of carrier density, tensile strain, well width and barrier material component on the refractive index changes of TE mode and TM mode in quantum well are analyzed. Then the quantum wells having characteristics of both large refractive index change (on the order of 10-2) and low polarization dependence (on the order of 10-4) in a wavelength range from 1530 nm to 1570 nm are designed by comprehensively integrating the parameters above. The result shows that almost the same spectra of refractive index change can be acquired by integrating different groups of parameters.

show abstract

A New Spice Model of Silicon-Based Micro-Ring Resonator and Application for Optical Filter

Cited by 4 publications

References 0 publications

Tunable filters based on an SOI nano-wire waveguide micro ring resonator

Tunable filters based on an SOI nano-wire waveguide micro ring resonator

Ecological divergence despite common mating sites: Genotypes and symbiotypes shed light on cryptic diversity in the black bean aphid species complex

Polarization dependence of carrier-induced refractive index change

Contact Info

Product

Resources

About